from __future__ import annotations

import json


def test_analyze_trends_parses_json(monkeypatch, isolated_output):
    import daily.agent_workflow as agent
    import daily.config as config

    monkeypatch.setattr(config, "OUTPUT_DIR", isolated_output)
    monkeypatch.setattr(agent, "OUTPUT_DIR", isolated_output)

    monkeypatch.setattr(
        agent,
        "llm_chat",
        lambda system, user: json.dumps(
            {
                "headline": "Skills 视频工具升温",
                "opening": "今日 remotion 相关技能继续走强。",
                "themes": [{"name": "视频", "summary": "Remotion 生态活跃"}],
                "top_picks": [],
                "signals": [],
            },
            ensure_ascii=False,
        ),
    )

    llm_input = {"date": "2026-07-03", "skills_trending": []}
    trends = agent.analyze_trends(llm_input, date_str="2026-07-03")

    assert trends is not None
    assert trends["headline"] == "Skills 视频工具升温"
    assert (isolated_output / "2026-07-03.trends.json").exists()


def test_write_wecom_report_extracts_markdown_block(monkeypatch):
    import daily.agent_workflow as agent

    monkeypatch.setattr(
        agent,
        "llm_chat",
        lambda system, user: "```markdown\n📰 **早报 · 2026-07-03**\n\n正文\n```",
    )

    md = agent.write_wecom_report(
        {"date": "2026-07-03"},
        {"headline": "test", "opening": "open"},
        date_str="2026-07-03",
        time_str="09:30 (UTC+8)",
        updated="2026-07-02",
    )

    assert md is not None
    assert md.startswith("📰")
    assert "正文" in md